Well, in spite of his attempt at skirting NSAC rules, Silva has proven himself to be a bigger man than they are (and no, we’re not talking about the commission’s recent claim that it will be hiring a professional hogwatcher) by admitting he screwed up.

In a statement he sent MMAJunkie today, Silva admits that he tampered with the test by using a “urine adulterant,” meaning a chemical compound that cases dirty urine to register a false negative reading when tested. There are several products on the marked that claim to beat drug tests and even “clean” synthetic urine that can be purchased online for such purposes.

Before we get into a pissing contest about who knows more about the science of beating urine tests, check out Silva’s explanation after the jump.